Equalizing-valve for water.



J. J. LAWLER BQUALI ZING VALVE FOR WATER.

APPLICATION FILED JAN. 17, 1912.

Patented 0013. 21, 1913.

2 SHEETS-SHEET 1.

WITNESSES.

' J. J. LAWLER.

EQUALIZINGv VALVE FOR WATER. APPLICATION FILED JAN. 17'. 1912.

1,076,293, V Patented 0015.21, 1913? .2 SHEETS-SHEET 2.

WITNESSES: INVENTOR James JZ aWZer ATTORNEY j PATENT OFFICE.

utilise.- mw-Lnh, or rnnnm, new room Valves jor Water, of which the folat predetermined temperature to any fde 657,600, filed Oct. th, 1911 I,'s 'ow two separated valves'in a valve bodyfor regulate i 25 is a crosssectional view on line 2-2 of ig.

To alzpalwmit 'iimy concern: I v i -valve, which controls a compoundport? through which the 'mixed hot and cold water 5 the presentapplication I-in'ake use of f anama-exam was warm.

amaomnmmw. --Patented'0et.21,1913. ap aaaa nemnmn,1m. aaaa.a;a1.;

"Bei'tlinOWh that I, JAMES J, Lamp, a citizen of th United States, andresident of Pelham, in the county "of mstchester and 't State of NewYork, have invented certain new and useful'Impro'vement's'in Eu'alizir'rgowmg" is;

y invention aha-s "to 'equalizin "valved for water and is used on sevices W ere hot 2 and cold water are combined and delivered;

sired point, the object bei to produce such 2 a' device in which airiseated or cooled, that is compressed or expanded for instantly ansensitively re lating the inlet valves.

. other ob ec't 1s to construct a compound passes, in s'ueh a manner asto avoid. a; water hammer.

In my pending application, S rial No.

ing the supply of hot and cold water, and in a double acting valvewit-ha device adapted for use in special places where an extremelydelicate or accurate degree of-temperature must be continuously ha 4 Inthe drawings, wherein like reference characters denotecorrespondingfp'arts in the several views, Figure 1 is a centralvertical sectional view of the device, the c'om ound or double actingvalve being at its owest point and open to the coldv water. Fi 2 1. Fig.3 is a center sectional view of the valve body, the two upper char'nbersbeing broken away, the compound va've and two checkvalves being shown inelevation and Fig-,4 is an end elevation of Fig. 3 "artly shown incenter section on iine4-4 0% Fig. 2. Arrows indicate direction of the,water.

The valve body,'1, is composed of a casting cor'ed out in such aina'n'ne'r as to provide an inlet, 2, for cold water a seating, 3, foraheck valve, 4., an upper e amber, 5, an inlet for the hotwate'r, '6,afs'eating, 7 for. a check valve, 8 a lower c aftnber, 9-, an inner cmber, 10, having an outlet 11': this inner chamber also has two ports inwhich tli'ebon'i pound valve slides, t-he upper 13 is the 'cold waterinlet and the lower port, 14, is the hot water inlet. The compoundvalve, 15,

.Jpiece,

has two crown disks, 15 15 respectively,

Ian which the fingers, 15-, m reverse and ob- ,verse, {as shown .in Fig.3, the disks 'andlingers being neatly grolmd into their respecve portsto make a close, sliding fit. The integral valve stem extends above andbelow said valves, the upper part, 16, connecting with "a rtfbberdiaphragm, 17, and the lower part, 18, eonnecting with anotherEliahragm, 19, as shown, Thediaphragih, 17, s held in place by theflange of a connecting 20,- and by the u I I21, on the upper cham er,by'ineans of a nut, 22, or in any preferred manner, while the Sdiaphra19, is held in place between the lower e ge of the neck, 23-, on thelower j chamber and a spring case, 24, which is screwed 'on said neck.

a. 24 is an air hole. A helical spring, 25,

presses upwardly against a flanged nut, 26, which is screwed on thelower valve stem, 18, to hold the diaphragm in position: a screw plug27-, having a square head '27 is adjusta-bly placed in said spring'case.

The "connecting piece, 20, screws into ,a convex body 28 havinlgeaflange, 28 which supports the air cham r, 29, and the water cylinder orcase, 30, for conve ing the water upwardly and out through t "e outlet,30 said cylinder being provided with an in- .teg'i'al annular flange,302 at its lower d.

and an inlet, 30, for the The air chamber, '29, is made of thin metal,

preferablggbr'ass or copper, a series of tubes,

29 29 passing therethrough laterally and fastened in the periphery ofthe air charnber by soldering or otherwise, to act as braces and for thepassage of the mixed water which enters the-inlet, 30, and asses outupwardly through the outlet. A. ange,

31, is fastened to the i0 r edge of 's'ai'd air.

chamber. A series of oles are drilled through said flange to aline withholes in the flanges, 30 and 28 into which screws, 32, "are inserted forholding and clamping the said air ichamber, the water cylinder and therubber 'dia hragm,'33 together. Anexitension, 16 o the upper valve stem,16 is {threaded for the reception of a flanged not, 334, the diaphrag 17being centrally held 1n centrally held between the said two parts,

as shown.

Anair. hole, 20 is drilled through the wall of the connecting piece, 20.Two plug caps, 38, 39 respectively act as guides for the stems, 4 and 8respectively of the check valves, and also afiord a means for insertingor removing the check valves from the valve body. A curved tube, 40,screwed into the outlet, 11, of the inner chamber, 10, conveys the Waterfrom the .valve body, 1, upwardly 'into the water cylwardly against thespring 25, this in turn pressing upwardly against the lower nut on thevalve stem whereby the compound valve is operated,'said valve openingand closing, one or the other of the hot or cold water ports, and whenthe desired temperature of the water has been reachedat the outlet, thatdegree will be maintained automatically and instantly in the followingmanner: If the hot water should become cooler, the temperature of themixed water, passing upwardly through the narrow, annular space betweenthe cylinder and air chamber and through the lateral tubes in the airchamber, will be proportionately lowered, the confined air within theair chamber will contract and with the aid of the spring, 25, thecompound valve will be pushed upward whereby the cold water is closedoff and an excess of hot water is turned on in exact proportion to thedifference in the temperature. If the hot water should be come hotterthan the device was set for, the reverse operation would take place;that is, the mixed water would rise in temperature whereby the confinedair in the air chamber is expanded, the diaphragm, 33,

will be depressed by the valve stem against the action of the spring,25, the hot water be shut off and an increased quantity of cold water beturned on until the balance between the compressed air and thecompressed spring was reached. This action is so rapid, owing to theconstructionof the device, that a few degrees variation of the wateratthe outlet will immediately aflect the adjustment or balance which isautomatically controlled by the compound valve sliding in the innerchamber, 10, as described.

Briefly stated, the spring, 25, raises the compound valve and pressesupwardly against the confined air in theair chamber, and when said airis caused to expand, it presses the valve downwardly against th spring,25.

What I claim is- 1. In an equalizing valve for water, a valve bodyhaving separate inlets for hot and cold water, respectively, an innerchamber communicating with the said inlets, a double actmg valvecontrolling inlet ports in said inner chamber, a superim osed watercylinder connected to said valve ody and in communication with saidinner chamber, an air chamber positioned in said water 0 linder, opentransverse tubes through sai air chamber, a diaphragm closing one end ofsaid air chamber, mechanical means for pressing said valve in an upwarddirection and a valve stem upon said valve having one end thereofengaglng said diaphragm.

2. In an equalizing valve for hot and cold water, a double. actingvalve, verticall mounted in an inner chamber through which the hot andthe cold water passes, an adjustable spring pressing u wardly againstthe valve stem of said double acting valve adapted for positioning thevalve for a delivery of water at a predetermined temperature, a watercylinder having an inletat its base and an outlet at its apex, a pi ecoinmunicating between said inner chamber-and inlet, said water cylinderinclosing an air chamber, a flexible diaphragm closing one end of saidair chamber, transverse water pipes through said chamber, and meanscentrally mounted in said diaphragm for press-- ing the valve stem ofsaid double acting valve downwardly for closing off the hot water whenthe confined air in said air chamber is expanded.

3. In a valve device, a valve casing having an inner chamber, hot andcold water inlet ehambers at opposite sides thereof and said innerchamber communicating at its bottom and top respectivel with said hotand cold water inlet cham er, a vertically movable double acting valvein said inner chamber, oppositelyextending stems upon said valve, anadjustable spring contacting the free end of said lower stem adapted forpredeterminedly positioning the valve, a water cylinder mounted uponsaid casing with a bottom inlet and a top outlet, a pipe.

connecting said inlet and inner chamber, an air container within saidcylinder, transverse water pipes through said container, a diaphragmclosing the bottom of said container and the upper stem engaging saiddiaphragm and adapted for movement upon a change in temperature of theair in said container. I

4. In a valve device, a valve casing having an inner chamber, hot andcold water inlet chambers at opposite sides thereof, and said innerchamber communicating at its bottom and top respectively with said hotand cold water inlet chambers, a vertically movable doubleacting valvein said inner chamber, oppositely extending stems upon said valve, anadjustable spring contacting the free end of said lower stem adapted forpredeterminedly positioning the valve, said casing having a terminalbottom chamher, an adjusting plug closing the bottom of said last namedchamber and a diaphragm closing the top thereof and positioning saidspring therebetween, said casing also having a top chamber, a diaphragmclosing said top chamber and secured substantially centrally to saidupper stem, said casing provided with air ports communicating with saidtop and bottom chambers, a water cylinder mounted upon said casing, abottom inletand a top outlet for said Water cylinder, a pipe connectingsaid inlet and inner chamber, an air container wit-hm said cylinder,transverse water pipes through said container, a diaphragm closing thebottom of said container 15 and the upper stem engaging said d ia phragmand adapted for movement upon a change in temperature of the air insaid. container.

Signed at the city, county, and State of 20 New York this 15th day ofJanuary AD.

JAMES J. LAWLER. Witnesses: ICHARLES V. DWYER, EDGAR M. GREENBAUM.

